Registration Dossier

Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report Date:
2010

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
Laser scattering/diffraction
Type of particle tested:
other: Not specified
Type of distribution:
mass based distribution

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder

Results and discussion

Mass median aerodynamic diameter:
52.174 µm
Geometric standard deviation:
0.035
Particle sizeopen allclose all
Percentile:
D10
Mean:
14.158 µm
St. dev.:
1.93
Percentile:
D50
Mean:
43.615 µm
St. dev.:
0.9
Percentile:
D90
Mean:
111.755 µm
St. dev.:
1.88

Any other information on results incl. tables

Under magnification, the sample appeared to be irregular shaped crystals. The smallest particle size was approximately 3 µm and the largest size approximately 288 µm.

Applicant's summary and conclusion

Conclusions:
The particle size mass media aerodynamic diameter (MMAD) was determined to be 52.174 µM and the volume of sample with particles < 10 µm was 6.44%.